GNU bug report logs -
#52196
28.0.60; gdb-mi error message: "wrong type argument: stringp"
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Reported by: sebastian <at> bsnrg.net
Date: Tue, 30 Nov 2021 10:09:02 UTC
Severity: normal
Tags: moreinfo
Found in version 28.0.60
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
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(Tue, 30 Nov 2021 10:09:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
I've attached a small C++ program that can be used to reproduce the issue. I compiled it like so
g++ -g3 main.cc -o test-program
Steps to reproduce:
- emacs -Q
- evaluate the forms:
(require 'gdb-mi)
(setq gdb-many-windows t)
- M-x gdb with argument "gdb -i=mi /path/to/test-program"
- Do "run" in the gdb command prompt
- M-x gdb-io-interrupt
Result: error message in minibuffer "Wrong type argument: stringp, nil" (although the command executes normally).
Furthermore, in this state any of the following will also cause the same message to flash:
- doing M-x gud-break in the source buffer
- toggling a breakpoint in the breakpoint buffer
- probably others
Although again none of the commands fail to execute properly.
Root cause:
In the function gdb-frame-handler the form:
(setq gdb-selected-file (file-local-name (gdb-mi--field frame 'fullname)))
causes the error message if gdb-mi--field returns nil. I don't know if this is an expected return value for that function or not. In any case, file-local-name signals the error in case of nil input. The file-local-name wrapping was introduced semi-recently with commit 019c70e731d0243ad3ea2d4ebb02dd4a343e868f.
Thanks.
----------------------------------------
In GNU Emacs 28.0.60 (build 8, x86_64-pc-linux-gnu, GTK+ Version 3.22.30, cairo version 1.15.12)
of 2021-11-30 built on san
Repository revision: 30553d889d733613e8e5fd22358980baa7ee148e
Repository branch: emacs-28
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: CentOS Linux 8
Configured using:
'configure --prefix=/home/snorgaard/emacs-master --with-cairo
--with-dumping=pdumper --with-mailutils --with-json --with-x
--with-xwidgets --with-native-compilation
--enable-link-time-optimization 'CFLAGS=-g3 -O3 -mtune=native
-march=native -fomit-frame-pointer''
Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBSELINUX LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG
RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM
XWIDGETS GTK3 ZLIB
Important settings:
value of $LANG: en_DK.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: C++//l
Minor modes in effect:
gdb-many-windows: 1
tooltip-mode: t
global-eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
abbrev-mode: t
Load-path shadows:
None found.
Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml mml-sec epa derived epg rfc6068 epg-config gnus-util rmail
rmail-loaddefs auth-source eieio eieio-core eieio-loaddefs
password-cache json map text-property-search mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date
cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine
cc-vars cc-defs comp comp-cstr warnings subr-x rx cl-macs cl-extra
help-mode seq byte-opt gv bytecomp byte-compile cconv gdb-mi cl-seq
cl-loaddefs cl-lib gud easy-mmode comint ansi-color ring iso-transl
tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar
rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame minibuffer cl-generic
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads
xwidget-internal dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit
x multi-tty make-network-process native-compile emacs)
Memory information:
((conses 16 134661 11459)
(symbols 48 10813 0)
(strings 32 31925 1896)
(string-bytes 1 1182054)
(vectors 16 20650)
(vector-slots 8 362625 14622)
(floats 8 46 30)
(intervals 56 365 3)
(buffers 992 19))
[main.cc (application/octet-stream, attachment)]
Information forwarded
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bug-gnu-emacs <at> gnu.org
:
bug#52196
; Package
emacs
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(Tue, 30 Nov 2021 13:11:01 GMT)
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Message #8 received at 52196 <at> debbugs.gnu.org (full text, mbox):
sebastian <at> bsnrg.net writes:
> In the function gdb-frame-handler the form:
>
> (setq gdb-selected-file (file-local-name (gdb-mi--field frame 'fullname)))
>
> causes the error message if gdb-mi--field returns nil. I don't know if this is an expected return value for that function or not. In any case, file-local-name signals the error in case of nil input. The file-local-name wrapping was introduced semi-recently with commit 019c70e731d0243ad3ea2d4ebb02dd4a343e868f.
Thanks for the analysis. I think I've now fixed this in Emacs 28 -- can
you pull and rebuild and see whether this works better now?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
Added tag(s) moreinfo.
Request was from
Lars Ingebrigtsen <larsi <at> gnus.org>
to
control <at> debbugs.gnu.org
.
(Tue, 30 Nov 2021 13:11:02 GMT)
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Information forwarded
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bug-gnu-emacs <at> gnu.org
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bug#52196
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emacs
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(Tue, 30 Nov 2021 19:41:01 GMT)
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Message #13 received at 52196 <at> debbugs.gnu.org (full text, mbox):
>> Thanks for the analysis. I think I've now fixed this in Emacs 28 -- can
>> you pull and rebuild and see whether this works better now?
Yes, if indeed the nil return value is expected your fix should work just fine. I've done a quick test and everything looks fine on my end.
Regards,
Sebastian
Information forwarded
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bug-gnu-emacs <at> gnu.org
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bug#52196
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emacs
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(Tue, 30 Nov 2021 20:38:01 GMT)
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Message #16 received at 52196 <at> debbugs.gnu.org (full text, mbox):
"Sebastian Arlund Nørgaard" <sebastian <at> bsnrg.net> writes:
>>> Thanks for the analysis. I think I've now fixed this in Emacs 28 -- can
>>> you pull and rebuild and see whether this works better now?
>
> Yes, if indeed the nil return value is expected your fix should work
> just fine. I've done a quick test and everything looks fine on my end.
Thanks for checking; I'm closing this bug report, then.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
bug marked as fixed in version 29.1, send any further explanations to
52196 <at> debbugs.gnu.org and sebastian <at> bsnrg.net
Request was from
Lars Ingebrigtsen <larsi <at> gnus.org>
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control <at> debbugs.gnu.org
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(Tue, 30 Nov 2021 20:39:02 GMT)
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bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
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internal_control <at> debbugs.gnu.org
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(Wed, 29 Dec 2021 12:24:10 GMT)
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This bug report was last modified 2 years and 80 days ago.
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